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Cheap flights from Seattle to Ireland from €237

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 31/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Seattle to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
07:00 - 10:15
SEA
-
SNN
19h 15m
1 stop
United Airlines Logo
12:30 - 21:55
SNN
-
SEA
17h 25m
1 stop
€662United Airlines
Tue, 6 Oct - Wed, 14 Oct
United Airlines Logo
08:10 - 10:15
SEA
-
SNN
18h 05m
2 stops
United Airlines Logo
12:30 - 22:56
SNN
-
SEA
18h 26m
2 stops
€667United Airlines
Tue, 6 Oct - Wed, 14 Oct
Multiple Airlines Logo
19:00 - 00:30
SEA
-
DUB
21h 30m
2 stops
Multiple Airlines Logo
13:00 - 14:20
DUB
-
SEA
33h 20m
2 stops
€671Multiple Airlines
Fri, 5 Jun - Tue, 16 Jun
Turkish Airlines Logo
19:15 - 23:05
SEA
-
DUB
19h 50m
1 stop
Turkish Airlines Logo
17:05 - 17:20
DUB
-
SEA
32h 15m
1 stop
€674Turkish Airlines
Wed, 14 Oct - Thu, 22 Oct
Multiple Airlines Logo
19:10 - 12:15
SEA
-
DUB
9h 05mdirect
Multiple Airlines Logo
21:40 - 16:00
DUB
-
SEA
26h 20m
3 stops
€674Multiple Airlines
Mon, 31 Aug - Thu, 3 Sep
Scandinavian Airlines Logo
10:05 - 11:50
SEA
-
DUB
41h 45m
2 stops
Scandinavian Airlines Logo
19:15 - 13:45
DUB
-
SEA
50h 30m
2 stops
€676Scandinavian Airlines
Sat, 29 Aug - Sun, 6 Sep
Multiple Airlines Logo
08:00 - 05:10
SEA
-
DUB
13h 10m
1 stop
Multiple Airlines Logo
13:20 - 18:45
DUB
-
SEA
37h 25m
2 stops
€677Multiple Airlines
Wed, 1 Jul - Wed, 8 Jul
Multiple Airlines Logo
23:25 - 07:10
SEA
-
DUB
23h 45m
2 stops
Multiple Airlines Logo
13:00 - 18:45
DUB
-
SEA
13h 45m
1 stop
€678Multiple Airlines
Fri, 5 Jun - Fri, 19 Jun
Delta Logo
07:20 - 11:10
SEA
-
SNN
19h 50m
1 stop
Delta Logo
13:05 - 22:16
SNN
-
SEA
17h 11m
1 stop
€691Delta
Sun, 6 Sep - Sat, 19 Sep
Delta Logo
13:30 - 14:40
SEA
-
ORK
17h 10m
1 stop
Delta Logo
05:45 - 11:47
ORK
-
SEA
14h 02m
1 stop
€744Delta
Sun, 18 Oct - Thu, 5 Nov

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
29 Oct
SEA12:13Seattle/Tacoma Intl
15h 02m
2 stops
DUB10:15Dublin
6 Nov
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
€686
Icelandair
21 Jul
SEA15:40Seattle/Tacoma Intl
11h 25m
1 stop
DUB11:05Dublin
29 Jul
DUB12:15Dublin
13h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€705
Icelandair
31 May
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
15 Jun
DUB14:15Dublin
14h 25m
1 stop
SEA20:40Seattle/Tacoma Intl
€711

WestJet flights from Seattle to Ireland

Our best WestJet deals on Seattle to Ireland flight tickets
WestJet
8 Jun
SEA10:30Seattle/Tacoma Intl
16h 20m
1 stop
DUB10:50Dublin
18 Jun
DUB10:40Dublin
31h 00m
2 stops
SEA09:40Seattle/Tacoma Intl
€706
WestJet
11 Jun
SEA10:30Seattle/Tacoma Intl
16h 20m
1 stop
DUB10:50Dublin
18 Jun
DUB10:40Dublin
31h 00m
2 stops
SEA09:40Seattle/Tacoma Intl
€715

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 18 May 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 6/10

07:00-10:15

1 stop19h 15m

Shannon

Wed 14/10

12:30-21:55

1 stop17h 25m

€662

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 6/10

08:10-10:15

2 stops18h 05m

Shannon

Wed 14/10

12:30-22:56

2 stops18h 26m

€667

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 5/6

19:00-00:30

2 stops21h 30m

Dublin

Tue 16/6

13:00-14:20

2 stops33h 20m

€671

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 14/10

19:15-23:05

1 stop19h 50m

Dublin

Thu 22/10

17:05-17:20

1 stop32h 15m

€674

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 31/8

19:10-12:15

Nonstop9h 05m

Dublin

Thu 3/9

21:40-16:00

3 stops26h 20m

€674

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 29/8

10:05-11:50

2 stops41h 45m

Dublin

Sun 6/9

19:15-13:45

2 stops50h 30m

€676

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 1/7

08:00-05:10

1 stop13h 10m

Dublin

Wed 8/7

13:20-18:45

2 stops37h 25m

€677

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 5/6

23:25-07:10

2 stops23h 45m

Dublin

Fri 19/6

13:00-18:45

1 stop13h 45m

€678

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 6/9

07:20-11:10

1 stop19h 50m

Shannon

Sat 19/9

13:05-22:16

1 stop17h 11m

€691
Fastest return journey

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 18/10

13:30-14:40

1 stop17h 10m

Cork

Thu 5/11

05:45-11:47

1 stop14h 02m

€744

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of November is another great option to travel to Ireland, with average flight prices from Seattle averaging around €258.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight from Seattle to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €534 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €419 on momondo.

Can stopping save me money on Seattle to Ireland flights?

No. A direct flight is the cheapest option for a flight between Seattle to Ireland.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Every day

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland every day.
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

Frequently asked questions about flying from Seattle to Ireland

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €39
Flights to Corkfrom €85
Flights to Shannon, Clarefrom €86
Flights to Milltown (Kerry)from €39
Flights to Donegalfrom €76